SDL  2.0
SDL_waylandclipboard.c
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
4 
5  This software is provided 'as-is', without any express or implied
6  warranty. In no event will the authors be held liable for any damages
7  arising from the use of this software.
8 
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12 
13  1. The origin of this software must not be misrepresented; you must not
14  claim that you wrote the original software. If you use this software
15  in a product, an acknowledgment in the product documentation would be
16  appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18  misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20 */
21 #include "../../SDL_internal.h"
22 
23 #if SDL_VIDEO_DRIVER_WAYLAND
24 
25 #include "SDL_waylanddatamanager.h"
26 #include "SDL_waylandevents_c.h"
27 
28 int
29 Wayland_SetClipboardText(_THIS, const char *text)
30 {
31  SDL_VideoData *video_data = NULL;
32  SDL_WaylandDataDevice *data_device = NULL;
33 
34  int status = 0;
35 
36  if (_this == NULL || _this->driverdata == NULL) {
37  status = SDL_SetError("Video driver uninitialized");
38  } else {
39  video_data = _this->driverdata;
40  /* TODO: Support more than one seat */
41  data_device = Wayland_get_data_device(video_data->input);
42  if (text[0] != '\0') {
43  SDL_WaylandDataSource* source = Wayland_data_source_create(_this);
44  Wayland_data_source_add_data(source, TEXT_MIME, text,
45  strlen(text) + 1);
46 
47  status = Wayland_data_device_set_selection(data_device, source);
48  if (status != 0) {
49  Wayland_data_source_destroy(source);
50  }
51  } else {
52  status = Wayland_data_device_clear_selection(data_device);
53  }
54  }
55 
56  return status;
57 }
58 
59 char *
60 Wayland_GetClipboardText(_THIS)
61 {
62  SDL_VideoData *video_data = NULL;
63  SDL_WaylandDataDevice *data_device = NULL;
64 
65  char *text = NULL;
66 
67  void *buffer = NULL;
68  size_t length = 0;
69 
70  if (_this == NULL || _this->driverdata == NULL) {
71  SDL_SetError("Video driver uninitialized");
72  } else {
73  video_data = _this->driverdata;
74  /* TODO: Support more than one seat */
75  data_device = Wayland_get_data_device(video_data->input);
76  if (data_device->selection_offer != NULL) {
77  buffer = Wayland_data_offer_receive(data_device->selection_offer,
78  &length, TEXT_MIME, SDL_TRUE);
79  if (length > 0) {
80  text = (char*) buffer;
81  }
82  } else if (data_device->selection_source != NULL) {
83  buffer = Wayland_data_source_get_data(data_device->selection_source,
84  &length, TEXT_MIME, SDL_TRUE);
85  if (length > 0) {
86  text = (char*) buffer;
87  }
88  }
89  }
90 
91  if (text == NULL) {
92  text = SDL_strdup("");
93  }
94 
95  return text;
96 }
97 
98 SDL_bool
99 Wayland_HasClipboardText(_THIS)
100 {
101  SDL_VideoData *video_data = NULL;
102  SDL_WaylandDataDevice *data_device = NULL;
103 
104  SDL_bool result = SDL_FALSE;
105  if (_this == NULL || _this->driverdata == NULL) {
106  SDL_SetError("Video driver uninitialized");
107  } else {
108  video_data = _this->driverdata;
109  data_device = Wayland_get_data_device(video_data->input);
110  if (data_device != NULL && Wayland_data_offer_has_mime(
111  data_device->selection_offer, TEXT_MIME)) {
112  result = SDL_TRUE;
113  } else if(data_device != NULL && Wayland_data_source_has_mime(
114  data_device->selection_source, TEXT_MIME)) {
115  result = SDL_TRUE;
116  }
117  }
118  return result;
119 }
120 
121 #endif /* SDL_VIDEO_DRIVER_WAYLAND */
122 
123 /* vi: set ts=4 sw=4 expandtab: */